美国有线新闻 CNN 2015-08-30

 On the way, and that’s what we start today on commercial free CNN student news. I’m Carroll. Welcome to the show. Before American have one major candidate for these party to choose from on Election Day, those party have to decide who know nominate. That happened through premier¹ and *. Boston meeting scheduled to start only next year. Here the looking how they stand right now. For the democrat², 5 people have officially announced their candidacy. National poll indicated that former secretary of the state Hillary Clinton is in the lead nationwide for the democrat nomination³. For the republican, 17 people have officially announced their candidacy. National poll indicated that business man Donald Trump⁴ is in the lead nationwide for the republican nomination. NASA and NOAA, the national oceanic and atmospheric⁵ administration, held a meeting yesterday. Their focus was on global sea levels, and their main question was how fast would sea levels rise. This isn’t happening everywhere. One NASA ocean expert said sea levels on the US west coast have fallen over the past 20 years due to what he called natural cycles. But in other areas, scientists said arisen sea level could happen relatively⁶ fast.

Sea levels * point ocean meat the land. Many of earth’s most important cities and their hundreds of millions of people live within just a few seas of that point. We are talking the sea levels on the globally average scale, where changes of just a couple advances take hundreds even thousands years to occur. But if those couple advances turning to a couple of seas, and that change happens in our life, we give in talking about draft the coast all over the years. Sea level changes primarily because of two main factors. The primary reason that something called *, which is simply that water extend as a one result. Keep up a basic durometer, as the temperature goes up, the liquid inside the * rises as it expend⁷. The second way that global sea levels were rise and fall base on how much water its tide up and land base ice. Sea base ice like an esprit, it is melt, it does not change sea level. Just like you have a drink and ice in your drink melts, it doesn’t change the height of your drink. But lands they said is critically important. As temperatures increased, that ices base on the land will melt, and they will flow into the ocean, and they will rise the sea level. For instance, if just the Greenland ices alone were to melt, it contains enough water to rise global sea level by over 20 feet. We are already seeming the process of play how. In the last century as global temperatures have risen, we’ve seen sea levels rise faster than any point in the last 2000 years.

1 premier   

adj.首要的；n.总理，首相

参考例句：

• The Irish Premier is paying an official visit to Britain.爱尔兰总理正在对英国进行正式访问。
• He requested that the premier grant him an internview.他要求那位总理接见他一次。

2 democrat   

n.民主主义者，民主人士；民主党党员

参考例句：

• The Democrat and the Public criticized each other.民主党人和共和党人互相攻击。
• About two years later,he was defeated by Democrat Jimmy Carter.大约两年后，他被民主党人杰米卡特击败。

3 nomination   

n.提名，任命，提名权

参考例句：

• John is favourite to get the nomination for club president.约翰最有希望被提名为俱乐部主席。
• Few people pronounced for his nomination.很少人表示赞成他的提名。

4 trump   

n.王牌，法宝；v.打出王牌，吹喇叭

参考例句：

• He was never able to trump up the courage to have a showdown.他始终鼓不起勇气摊牌。
• The coach saved his star player for a trump card.教练保留他的明星选手，作为他的王牌。

5 atmospheric   

adj.大气的，空气的；大气层的；大气所引起的

参考例句：

• Sea surface temperatures and atmospheric circulation are strongly coupled.海洋表面温度与大气环流是密切相关的。
• Clouds return radiant energy to the surface primarily via the atmospheric window.云主要通过大气窗区向地表辐射能量。

6 relatively   

adv.比较...地，相对地

参考例句：

• The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
• The operation was relatively painless.手术相对来说不痛。

7 expend   

vt.花费，消费，消耗

参考例句：

• Don't expend all your time on such a useless job.不要把时间消耗在这种无用的工作上。
• They expend all their strength in trying to climb out.他们费尽全力想爬出来。